Pneumatically-controlled multiple-spindle tapping and drilling apparatus.



R. W. PHILLIPS. PNEUMATIGALLY CONTROLLED MULTIPLE SPINDLE TAPPIN3 AND DRILLING APPARATUS. APPLICATION FILED DEG 17.1913.

Ll24,l67.,v Patented Jan.5, 1915.

3 SHEETS-SHEET 1.

WITNESSES:

Kl/zd MM lNVEN'fOR.

fun-T ATTORNEY.

' R. W. PHILLIPS.

PNEUMATIOALLY CONTROLLED MULTIPLE SPINDLE TAPPING AND DRILLING APPARATUS.

APPLICATION FILED DEG,17.1913.

WITNESSES? Patented Jan. 5, 1915.

3 SHEETS-SHEET 2.

AT TOHNEY.

R. W. PHILLIPS.

PNEUMATIOALLY CONTROLLED MULTIPLE SPINDLB TAPPING AND DRILLING APPARATUS.

' APPLICATION FILED D2017. 1913.

1,1Q4,167 Patented Jan.5, 1915.

' s SHEETS-SHEET 3. F1 3 WITNESSES.

lmvmm'rog.

AT T ORNEY.

RAE'W. PHILLIPS, OF LOS ANGELES, CALIFORNIA.

PNEUMETICALLY-CONTROLLED MULTIPLE-SPINDLE TAPPIN G AND DRILLING APPARATUS.

Specification of Letters Patent.-

Patented Jan. 5, 1915..

Application filed. December 17, 1913. Serial No. 807,348.

To all whom it may concern Be it known that I, RAE W. PHILLIPS, a citizen of the United States of America, residing at Los Angeles, county of Los Angeles, State of California, have invented a certain new and useful Pneumatically- Controlled Multiple-Spindle Tapping and Drilling Apparatus; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art towhich it appertains to make and use the same.

This invention relates to pneumaticallycontrolled multiple-spindle tapping and drilling apparatus, and it may be said to consist in the provision of the novel and advantageous features and in the novel and im proved construction, arrangement, and combination of parts and devices as will heapparent from the description and claims which follow hereinafter.

Objects of the invention are to provide a novel and improved apparatus of the class specified which is comparatively simple in construction and operation, easily adjustable tooperate on pipe fittings, etc., of different forms and sizes, effective in action, convenient and economical to use, and easily operated'by unskilled operatives to do quick and accurate work.

Further objects of the invention are to provide a novel and improved apparatusof the class specified in which the spindles are fed into the work by air under pressure vwhereby damage to the apparatus is avoided in striking hard places in material being worked on, and in which the operation of each of the spindles is adjustably independently'controlled so that each of the spindles may be operated to complete its own set work though such work is greater or less than that of the other spindles.

Other objects and the advantages of the invention will be apparent to those skilled in the art from a consideration of the followin description of the preferred construction of the apparatus embodying the invention, taken in connection with the accompanying drawings in which.-

Figure 1 is an elevational View of the apparatus, 2 is a plan view of theapparatu's; Fi 3 "is an enlarged view of a Qrtion of t e apparatusg Fig. 4 is an enarged' partly-bro enview taken-onthe line r 1 of Fig. 2; Fig. 5 is an enlarged view, with parts omitted, taken on the line 55 of Fig. 2; Fig. 6 is an enlarged sectional view taken on the line 66 of Fig. 2, with parts in changed position; Fig. 7 is an enlarged broken view taken on the line 77 of Fig. 2; Fig. 8 is an enlarged brokensectional view taken on the line 88 of Fig. 7 and Fig. 9 is a View of a cross-fitting and of the tools for operating thereon.

The postlO is provided with circular 1'- channels 11 and with openings 12, and it has near its upper end an annular guide 13 for the bevel gear 14. A plurality of brackets 15 are adjustably mounted on the post 10 and are preferably provided with horizontal flanges 16 at the upper end thereof and with vertical flanges 17 at the inner end thereof. The means for adjustably holding the brackets 15 on the post 10 preferably consists of T-bolts 18 which latter have their heads fitted freely in the '5'- channels 11 and pass through the vertical flanges 17 and are provided with adjustable nuts 19 thereon. Screws 20 passing through the vertical flanges 17 are adapted to fit into any of the openings 12 to hold the brackets 15 in adjusted position on the post 10. Frames 20, having thereon mechanism for operating and controlling the operation of the spindles 21, are slidably mounted on the brackets 15 and adapted to be locked in adjusted position. The frames 20-are preferably provided with parts 22 adapted-to rest on the top of the flanges 16, and with parts 23- which are adapted to extend downwardly adjacent to the sides of the flanges 16 and have thereon bars 24 adapted to be brought into locking engagement with the underside of the flanges 16 by turning the screws 25 which pass through the bars 24 and into the parts 28.

The mechanism for operating the spindles 21 is preferably constructed as follows: Shafts 26 are mounted in bearings 27 on the frames 20 and have fast thereon bevel pinions 28 in mesh with the bevel gear 14. The free end of the shafts 26 extend beyond the frames 20 to permit said frames being moved longitudinally of the shafts 26. Spur pinions 29 are splined on the shafts 26 and are moved along the shafts 26, when the frames 20 are moved, by projections 30- on the frames 20.' The spur pinions 29 are in mesh with'spur wheels 30 mounted loose on the countershafts 31 which bear in the frames 20, and have fast thereon the spur pinions 32 which latter are in mesh with the spur wheels 33 mounted fast on the sleeves 34 which are arranged loosely on the spindles 21 which are mounted in bearings 35 on the frames 20. The sleeves 34 have the outer end portions thereof enlarged and operatively connected to the spindles 21 by spiders keyed to the spindles 21 and having arms 36 passing freely through slots 37 in the enlarged outer portions of the spindles 21. Shafts 38 bearing in the frames have fast thereon operating levers 39 and arms 15 40 which latter are operatively connected with the 'movable jaw-clutch members 41 which are splined on the countershafts 31 and adapted to engage with the stationary jaw-clutch members 42 on the spur wheels so 30. The bevel gear 14 and consequently the shafts 26 are driven by shaft 43 which has its outer end bearing in the pillow block 44 and has its inner end portion journaled in a bearing 45 in the post 10 and provided witha bevel pinion 46 keyed thereon in mesh with the bevel gear 14.

The mechanism for controlling the operation of the spindles 21 is preferably constructed as follows: Cylinders 47 are suit to ably carried by the frames 20 and have arranged therein pistons 48 which are connected to the spindles 21 by stems 49 which latter pass through stuffing boxes 50 and also through bushings 51 on the frames 20.

The pistons 48 are pressed inwardly by air under pressure to feed suitable working tools 49-which may be aflixed to the spindles 21 by set screws 52 in the sleeves 53- into the openings of the cross fitting 54 or other pipe fitting to be worked on, and

afford a yielding force feed of the spindles 21 so that no damage results to the apparatus should the tools 49 strike hard places in the material of the fittings. Automatic means for stopping the rotation of the spindles 21 after they have been fed into the fittings to predetermined limits is preferably provided and constructed as follows: Cylinders 55 provided with piston valves 56 and carried on brackets 57 suitably securedand to the levers 39 are pivotally connected the rods 62. The stems 63 of the piston valves 56 have their free ends slidably mounted in brackets 64 on the frames 22, and they are provided with adjustable collars 65 and 65 adapted to be engaged by arms 66 which latter are slidably mounted on rods 67 and have one end thereof fitted over the stems 63 and have the other end thereof bifurcated and in loose engagement 65 with rings 68 which are suitably secured in position at the ends of the arms 36. The rods 67 are preferably stationarily mounted .on the frames 20, and the arms 66 are splined on the rods 67 to hold said arms free from frictional contact with the stems 63. Air under pressure passes to or from the air dis tributing cylinder 69 via fieXible ducts 70 which are connected to the valved nipples 71 in the head end of the cylinders 47, and it passes to or from the air distributing cylinder 72 via flexible ducts 73 which are con nected to the valved nipples 74 in the rear end of the cylinders 47. Pipes 75 connect the head end of the cylinders 47 with adjacent piston valves 56, and pipes 76 connect the rear end of the cylinders 47 with the head end of adjacent cylinders 55. When air under pressure has been admitted to the head end of the cylinders 47the spindles 21 being rotated at that time by the arms 36 which are rotated by the sleeves 34the spindles 21 are moved inwardly, by movement of the pistons 48 toward the rear end of the cylinders 47, to feed the working tools 49 into the fitting and said spindles at the same time move the arms 36, rings 68, and arms 66 until the arms 66 engage the collars 65 and thereby move the stems 63 of the piston valves 56 so that the latter admit air from the head end of the cylinders 47 to the rear end of the cylinders 55 and thereupon cause movement of the pistons 58 toward the head end 'of the cylinders 55 and in consequence such movement of the levers 39 as will cause disengagement of the clutch members 41 and 42. When now air under pressure is admitted to the rear end of thecylinders 47 a portion of the air passes to the head end of the cylinders 55 and causes movement of the pistons 58 toward the rear end .of the cylinders 55 and in consequence the levers 39 are moved to effect engagement the arms 66 engage the collars 65 and thereby move the stems 63 of the piston valves 56 so that the latter close the passageways for the air to the rear end of the cylinders 55. A four-way valve 77 is provided with an operating handle 78 and has connected therewith supply pipe 79, exhaust pipe 80,

pipe 81 connected with the air distributing cylinder 69, and pipe 82 connected with the air distributing cylinder 72. When the handle 7 8 is moved forwardly from its central position, air under pressure passes from the supply plpe 79 to the cylinder 69 and thence by the ducts 70 to the head end of the cylindersdi, and at the same time air passes from the rear end ofthe cylinders 47 through the ducts73 to,the cylinder 72 and through the exhaust pipe 80. When the handle 78 is moved rearwardly from its central position, air under pressure passes from the supply pipe 79 to the cylinder '72 and thence by the ducts 7 3 to the rear end of the cylinders 47, and at the same time air passes from the head end of 'the cylinders 47 through the ducts 70 to the cylinder 69 and through the; exhaust pipe 80. p 1

Theoperation of the driving shaft 43 is preferably automatically effected by the following construction: A shifter 83 is adapted to move the belt 84 from the loose pulley 85 to the keyed pulley 86 on the shaft {l3 I and thus cause rotation of the shaft 43 in one direction, and a shifter 87 is adapted to move thecrossed belt 88 from the loose pulley 89 to thekeyed pulley 90 on the shaft 43 and thus cause rotation of the shaft 43 in. a reverse direction. vCylinders 91 and 92 carried-by standards- 93 and at have therein pistons 95 and 96 which are respectively operatively connectedwith the shif ers 83 and 87. Flexible ducts 97 and 98 are connected with the cylinder-69 and are-I respectively connected with the head end of the cylinder 91 and with the rear end of the cylinder 92, and flexible, ducts 99 and 100 are connected with the cylinder 72 and are respectively connected with the rear end of thecylinder 91 and with the head end of the cylinder 92. When the handle 78 is moved forwardly from its central position; air under pressure passes from the cylinder 69 .via duct 97 to the head end of the cylinder91 andmoves thepiston95 toward the rear end of the cylinderfil and consequently causesthe shifter 83 to movethe belt84 onto the pulley 86; at the same time air may pass from; the rear end of the cylinder 91 via duct 99 -to cylinder 72 and to the exhaust pipe 80 YWhcn the handle 78 is moyed. rearwardly from its I central position, air under pressure passes from the cylinder =72 via duct 100 to the head end of the cy1inder92 and moves the piston 96 toward-the rearend of the'cylinder92 and consequently causes the shifter'87 to move the crossedybelt 88 onto the pulley 90; at

, thesarne time air may pass from the rear end of the cylinder 92 viaduct 98 to the cylinder 69 and to the exhaustpipe 80.. It will be understood that when. the belt St is shifted from the; pulley 85 to the pulley 86,. the crossed belt 88 isshifted'from the pu1ley 90 to the pulley. 89, and when the crossed belt .88, is shifted from the pulley 89 to pulley '90, the beltfit is shifted from the pulley 86 to ,the:gpulley,85.

an ratin y. be held ases to be operated on by any suitable or approved means, but preferably by means of a plate 101 which has a portion thereof adjustably secured in the groove 102 in the top of the post 10,-- and has thereon jaws 103 having shanks the lower ends of which are adjustably fitted in radial channels 104 formed in the plate 101. 7

From the foregoing it will be seen that the spindles 21 are adjustable angularly to each other and also radially of the post 10 to permit of the various 7 forms of pipe fittings and the like being operated on. Again, means is provided for adjustably independently controlling the operation of the spindles 21 so that the work desired to be done on the fitting by eaclnof the spindles may be regulated and accomplished without affecting the operation of the other spindles-said means permitting of automatically stopping the rotation of the spindles when the working tools on the spindles have moved into the fitting to predetermined limits.

H While one form of apparatus embodying the invention has been particularly illustrated and described, many changes and modifications thereof will readily occur to those skilled in the artwherefore the right is reserved to all such changes and modifications as do not depart from the spirit and scope of the invention as defined in the appended clainis.

1. Apparatus of the class specified, comprising a post, a plurality of brackets adjustable angularly-to each other on the post, framesmounted on the brackets and adjustable radially of the post, spindles on the frames,- working tools on the spindles, means for operating the spindles, and adjustable means for controlling the operation of the spindles. I v 7 2. Apparatus of the class-specified, comprising a post, a plurality of brackets, means permitting adjustment of the brackets angularly to each othe on the post, frames mounted on the brackets and adjustable radially of the post, spindles on the frames, working tools on the spindles, means forrotating the spindles, means for feeding the spindles by air under pressure, and means operatively connected with the spindles for controlling the operation of the spindles.

'3. Apparatus of the class specified, comprising a post, a plurality of brackets, means permitting adjustment of :the brackets angularly to each other on the post, frames mounted on the brackets and adjustable radially of the post, spindles on the frames, working tools 'on the spindles, a driving shaft, means for op'era-tively vconnecting the driving shaft with the spindles, means for feeding the spindles byair under pressure,

and adjustable pneumatically actuated means for controlling the operation of the spindles.

,4. Apparatus of the class specified, com prising a post, a plurality of brackets, means permitting adjustment of the brackets angularly to each other on the post, frames mounted on the brackets and adjustable radially of the post, spindles 0n the frames, working tools on the spindles, a driving shaft, means for operatively connecting thedriving shaft with the spindle, means for feeding the spindles by air under pressure, adjustable pneumatically actuated means operatively connected with the spindles for controlling the operation of the spindles, and pneumatically actuated means for controlling the operation of the driving shaft.

5. Apparatus of the class specified, comprising a post, a plurality of brackets, means permitting adjustment of the brackets angularly to each other on the post, frames mounted on the brackets and adjustable radially of the post, spindles on the frames,

working tools on the spindles, a driving shaft, shafts on the frames operatively connected with the driving shaft, spur pinions splined on said shafts and movable with the frames, countershafts on said frames, spur so fmesh. with the spur pinions, stationary wheels loose on the countershafts and in clutch members on the spur wheels, movable arms extending through said slots, rings on the arms, means for feeding said spindles into work by air under pressure, shafts on the frames, spur pinions splined on said shafts and movable with the frames, countershafts on said frames, spur wheels loose on the countershafts and in mesh with the spur pinions, stationary clutch members on the spur wheels, movable clutch members splined on the countershafts, operative connections between the countershafts and the sleeves, shafts bearing in said frames, levers on the last shafts, arms on the last shafts operatively connected with the movable clutch.

members, a driving shaft operatively connected with the first shafts, cylinders provided with piston valves, pistons in said cylinders operatively connected with said levers, stems on the piston valves slidably mounted on the frames, adjustable collars on said stems, rods on said frames, arms slidably mounted on said rods and operatively connected with said rings and adaptprising a post, a plurality of brackets, means permitting adjustment of the brackets. an-

gularly on the post, frames mounted on the brackets and adjustable radially of the post, spindles on the frames, working tools on the spindles, a bevel gear on the post, shafts on the frames, spur pinions splined on said shafts and movable with the frames, bevel pinions on said shafts in mesh with said bevel gear, countershafts on said frames, spur wheels loose on the countershafts and in mesh with the spur pinions, stationary clutch members on the spur wheels, movable clutch members splined on the countershafts, sleeves mounted loose on the spindles and having the outer end portions thereof enlarged and provided withslots, operative connections between the countershafts and the sleeves, spiders keyed to the spindles and having arms passing through said slots, rings on said arms, shafts bearing in said frames, levers on the last shafts, arms on the last shafts operatively connected with the movable clutch members, a driving shaft operatively connected with the bevel gear, cylinders carried by the frames, pistons in the cylinders operatively connected with the spindles, cylinders provided with piston valves, pistons in the last cylinders operatively connected with said levers, pipes connected between the rearend of the first cylinders and the headend of the last cylinders, pipes connected between the head end of the first cylinders and the piston valves, stems on the piston valves slidably mounted on said frames, adjustable collars on thestems,

rods on said frames, a'rmsslidably mounted on the rods and operatively connected with said rings and adapted to engage said collars to move said stems to operate the piston valves, air distributing cylinders, connections between the air distributing cylinders and the first cylinders, and a fourway valve connected with the air distributing cylinders.

8. In apparatus of the class specified, the

combination ofa bracket, a frame adjustably mountedon the bracket, a spindle'on the frame, a working tool on the spindle, a shaft on the frame, a spur pinion splined on said shaft and movable with the frame, a-

countershaft on the frame, a spur wheel loose on the countershaft and in mesh with shaft and the sleeve means for feeding the y spindle into work, a spider on the spindle having arms extending through said slots, a ring on the arms, a shaft bearing in said frame, a lever on the last mentioned shaft, an arm on the last mentioned shaft operatively connected with the movable clutch member, a cylinder provided with a piston valve, a piston in said cylinder operatively connected with said lever, a stem on :the pistnn valve slidably mounted on the frame, an

adjustable collar on said stem, a rod on said frame, and an arm slidably mounted on said rod and operatively connected with said ring and adapted to engage said collar to move said stem to operate the piston valve.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses at Los Angeles, county of Los Angeles, State of California, this 10th day of December A. D. 1913.

RAE W. PHILLIPS. 

